The Animal That Never Grows Old

The tiny freshwater Hydra is biologically immortal. Because its body is constantly renewing itself, it does not age or die from natural causes.

Named after the mythical Greek beast, this creature possesses incredible regenerative powers that let it repair any part of its body. Scientists have studied these animals for years to unlock the secrets of how they prevent cellular decay. While most living things inevitably fade with time, the Hydra keeps its tissues young indefinitely. It remains a fascinating puzzle for researchers studying the mystery of aging.